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Before you buy

Beginner checklist

Everything set up, switched on and holding steady before you bring an animal home.

Work down this list in order. The whole point is that the enclosure is finished and stable before a skink is in it, so the animal walks into conditions that already work instead of you scrambling to fix heat and humidity with a stressed lizard watching.

Run it empty first Build the enclosure, switch everything on, and let it run for at least two weeks with no animal inside. Log the temperatures and humidity morning and evening. If the numbers drift, you fix that now, not later.
Going bioactive? Allow longer Those two weeks are about proving the climate is stable, the heat, humidity and lighting holding where you set them. A bioactive build has a second clock running alongside it: the living part needs roughly 8 to 12 weeks to establish, with about 12 weeks the usual target, so plants root properly, the clean-up crew builds a breeding population and the substrate can actually process waste. Both timelines are right, they are just measuring different things. If you would rather not wait three months, run a simpler non-bioactive setup first and convert it later.

1. The enclosure

  • Tall, front-opening terrarium. Minimum 60 × 45 × 90 cm for a pair, 90 × 45 × 90 cm and up for a small group of three. Height matters more than floor area.
  • Good ventilation. Cross-ventilation keeps humidity high without the stagnant air that drives respiratory problems.
  • Secure catches. They are quick and they will test the door. Check for gaps around cable ports and vents.
  • A sensible spot in the house. Out of direct sun, away from draughts and radiators, somewhere you pass often enough to actually look at them.

2. Heat and light

  • Basking spot at 32 to 35 °C, measured at the branch where they will actually sit, not at the glass.
  • Ambient 26 to 30 °C by day with a mild night drop to roughly 24 to 25 °C, which is what their range actually does overnight.
  • A real thermal gradient. Warm at the top near the basking branch, cooler lower down, so they can choose.
  • UVB, aiming for UVI 2.0 to 2.5 at the basking branch. Distance sets the strength, so a linear T5 HO tube typically sits 23 to 28 cm above the branch through mesh, or 15 to 20 cm for a compact ShadeDweller in a 90 cm enclosure. A Solarmeter 6.5 is how you actually know. To work out lamp positions before buying anything, Light My Reptile will simulate your exact enclosure. Full detail, including the settings to use for this species, is on the terrarium page.
  • A bright ~6500 K daylight lamp spanning most of the enclosure, on top of the UVB. A UVB tube alone is not bright enough to light an enclosure for a diurnal animal.
  • A halogen basking lamp, not a deep heat projector, as the daytime hot spot. They bask under visible light, so invisible heat gives them nothing to come out for. A DHP is fine for night warmth.
  • Thermostat. Not optional. Every heat source runs through one.
  • Guards on heat sources, and raise the fixture off the mesh. A lamp resting on a screen top heats the screen itself, and these skinks hang from the underside of it.
  • Day/night cycle on a timer, roughly 12 hours each way, which matches the day length across their native range.
  • Thermometer and hygrometer at more than one height. A single sensor at the back wall tells you very little. I log mine automatically, which is what the Home Assistant page is about.

3. Humidity and water

  • Target 70 to 85% by day, rising to 85 to 99% overnight, then drying back down rather than sitting soaked. That daily cycle is what their native range does.
  • Misting system or a good hand sprayer. Automated misting is far easier to keep consistent, and consistency is the whole game. A fogger is not routine kit for this species.
  • Drainage layer plus substrate that holds moisture without going sour.
  • Water available. Many will drink droplets off leaves and decor as well as from a dish.
  • Dechlorinated or filtered water for misting, to avoid limescale over the glass and plants.

4. Furnishing the space

  • Climbing branches at several angles, thick enough to sit on comfortably, running the full height.
  • Cork bark and flats for climbing and hiding against.
  • Plants and leaf cover, live or artificial, for security and to hold humidity.
  • Sightline breaks. Animals kept together need places to be out of each other's view. This matters for keeping the peace.
  • More than one basking option so a dominant animal cannot monopolise the only warm spot.
  • Hides at different heights, including up high where they prefer to be.

5. Food and supplements

  • A feeder supply lined up before the animal arrives. Crickets, dubia roaches, black soldier fly larvae and locusts.
  • Somewhere to keep feeders and a plan to gut-load them, because an insect is only as good as what it last ate.
  • Calcium without D3, on a dusting schedule you will stick to.
  • Feeding tongs and a shallow dish for fruit or prepared diet.
  • Full detail on the husbandry and diet page.

6. Before you actually buy

  • Find an exotics vet first. Phone them, confirm they see reptiles, and save the number. Doing this during an emergency is too late.
  • Quarantine space ready if you already keep reptiles: a separate simple enclosure, separate tools, and you service it last.
  • Decide captive-bred or wild-caught with your eyes open. Captive-bred animals are calmer, cleaner and a far easier first experience.
  • Ask the seller real questions. Captive-bred or imported, how long they have had the animal, what it eats, when it last shed, and whether it has been weighed.
  • Budget checked for both the setup and the running costs. See what it costs.
  • A plan if a pairing fails. With a territorial species you need somewhere to separate animals at short notice.

7. First weeks at home

  • Leave them alone. Let a new arrival settle for a week or two with food, water and no handling.
  • Watch, weigh and record. Weight, appetite, sheds and droppings tell you early if something is wrong.
  • Keep the routine boring. Same lights, same misting times, same feeding pattern. Predictability is how they learn you are safe.
  • Run a faecal check through your vet for any new animal, and especially for anything wild-caught.

Sources & references

  • ReptiFiles, Emerald Tree Skink Care Sheet (Mariah Healey). reptifiles.com. The UVI target, lamp-to-branch distances, the Solarmeter, the 6500 K daylight lamp, and the humidity and night temperature figures.
  • Lester, K. (2026). Emerald Tree Skink Care Guide, 1st edition. Community compilation; source for the mesh-top burn warning, the deep heat projector point and the bioactive run-in.
  • Light My Reptile (Nathan Burton). lightmyreptile.com. Enclosure lighting simulator.
  • Open-Meteo archive API (ERA5 reanalysis). The native-range humidity and day length behind the targets above. Full figures on the terrarium page.
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